When trying to find out when you'll give birth, it's a wonderful idea to a use a calculator to determine that. Although your baby may not be born on that exact date, it gives a rough idea of when to expect your new baby. So long as you use correct information during your calculation, you'll get a relatively accurate clue of when your baby will be born. While pregnancies usually last for around 40 weeks, yours might last from 37 to 42 weeks. Of course, every baby and mother is different. To help you work out your due date better, here are some ways to do it.


Try to calculate your due date manually


This is quite a simple formula. Firstly, you must know when day one of your previous menstrual period was. Subtract three months from that date, and then add 7 days to that. For instance, if day one of the previous period was on November 12th, subtracting 3 months this will take to August 12th. Add 7 days to this date and you will have August 19th as the due date. This is quite easy and will give you an estimated date of delivery.


Keep track of cycles


It can be certainly helpful to keep track of your menstrual cycles if you're looking to predict your baby's due date. When you track your cycle using a calendar, you easily can find out when conception occurred. Tracking cycles, including when periods start and the length of your menstrual cycle may help you get a good idea of when you'll deliver once you get pregnant. For more facts about pregnancy, visit this website at


Get online


One of the simplest ways to figure out your due date at is to go online and start using a calculator. It's easy to find due date calculators on many pregnancy and parenting websites. You can find calculators that only need some information from you in order to arrive at a date. You will need to find out the length of your cycle and day one of your previous period. Enter the numbers and it'll work out the estimated date of your baby arriving.


Speak to your doctor



Although due date calculators at are helpful for finding out when a baby will arrive, if you're unsure of when you conceived or had your previous period, it's best to speak to a doctor. The doctor will often carry out an ultrasound to find out how far your baby has developed. This will then let your doctor determine a probable due date.